Finding the Third Proportional to 283,258,117.50 and 609,562,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,258,117.50 : 609,562,969.50 = 609,562,969.50 : x
2. Step 2: Convert to fraction form
   283,258,117.50/609,562,969.50 = 609,562,969.50/x
3. Step 3: Cross multiply
   283,258,117.50x = 609,562,969.50 × 609,562,969.50
4. Step 4: Simplify right side
   283,258,117.50x = 371,567,013,785,657,920
5. Step 5: Solve for x
   x = 371,567,013,785,657,920/283,258,117.50
6. Step 6: Final answer
   x = 1,311,761,220.00